but it still exists as a narrow metaled track). It was located in 1928, 543 yards from Turret 12a and 529 yards from Milecastle 13. It was excavated in 1930, and found to be almost identical in plan to Turret 12A. The platform was rectangular and occupied the south side of the interior. Location on Ordnance Survey 1:25 000 map: Monument records References Bibliography External links Hadrian's Wall: visiting information English Heritage Hadrian's Wall: Archaeological research 1976–2000 English Heritage 12